Improvement in tuyeres



UNITED STATES PATENT OFFICE.

ABEL T. ATHERTON, OF LOWELL, MASSACHUSETTS.

IMPROVEMENT IN TUYERES.

Specification forming part of Letters Patent N0. 55,222, dated June 5,1866.

To all whom'z't may concern:

Be it known that I, ABEL T. ATHERTON, of Lowell, in the county ofMiddlesex and State of Massachusetts, have invented new and usef ulImprovements in Tuyere-Irons; and I do hereby declare that the followingis a full and exact description thereof, reference being had to theaccompanying'drawings and to the letters of reference marked thereon.

The nature of my invention consists in the arrangement and constructionof lthe watercistern, tuyere-iron, and expansive packing, as hereinafterset forth.

To enable others skilled in the art to make and use my invention, l willproceed to describe its construction and operation.

Figure I 'represents a side elevation of a forge with water-cistern andtuyere-iron attached. Fig. 2 represents a vertical section of thewater-cistern and tuyere-iron.

a represents the forge, b, the water-cistern c, the blast-pipe; d., theend ofpipe attached to the bellows; c, the expansive packing; j', thetuyere-iron; g,the fire-box, h,thespacefortl1e water around theblast-pipe.

The lire-box g being filled with coal and fire applied, thewater-cistern b being lled with water, the blast put on at d, producescombustion of the coal and communicates heat to the tuyere-iron f. Thewater being constantly changing from the cistern b to the space h in thetuyere-iron f, a warm temperature of water is kept up when the forge ais in operation, which prevents freezing in cold weather. In theordinary manner, Where the tuyere-iron is connected with thewater-cistern by means of pipes, the water becomes frozen in thetuyereiron and pipes. No escape being afforded to the steam which isgenerated in consequence of re being applied to the coal in the forge,there is frequently an explosion and bursting Y of the tuyere-iron,which is 'attended with great danger to those atwork lat the forge. Thisdanger is entirely remedied by the construction of the tuyere-iron f ofmy invention, inasmuch as the tuyere-iron f, having a taper Water spaceor chamber, h, tapering much larger from its smallest point at the forgea to its largest point, where it is connected to the cistern b withoutthe aid of the common intervening straight pipes, which prevent, whenthe water in them congeals,the return of the Water and steam to thecistern allow the water, when freezing, to expand into the cistern I),and upon the application ot' heat to the tuyere-ironfthe ice is againconverted into water, and has free escape from the tuyere-iron finto thecistern l) without any of the danger attending the working of theordinary water tuyere-iron. In addition to this the expansive packing callows the blast-pipe c, which passes through the cistern b and connectswith the tuyere-iron f, to expand and contract under the action of heatand cold without injury to the cistern b or tuyere-iron f, and alsowithout allowing the water in the cistern b to escape at the tuyereironf, where it is attached to the Water-cistern b, and also around theblast-pipe c. Therefore the advantage of the water-cistern b, expansivepacking e, and tuyere-iron f, with water-space h, over the commonsupply-pipes is of vast importance to the smith in its utility,convenience, cheapness,l and safety.

What I claim as my invention, and desire to secure by Letters Patent,is-

The combination of the cistern b, tuyere-iron f, pipe c, and packing e,constructed and arranged substantially as set forth.

ABEL T. ATHERTON.

Witnesses:

PATRICK FLEINE, GEORGE E. PEVEY.

